How to write DAX for % change

Hi manojk_pbi ,

Please update the formula of measure as below to get it, please find the details in the attachment.

%Change = 
VAR _MY =
    SELECTEDVALUE ( 'Table'[MY] )
VAR _product =
    SELECTEDVALUE ( 'Table'[Product] )
VAR _preMY =
    CALCULATE (
        MIN ( 'Table'[MY] ),
        FILTER ( ALLSELECTED ( 'Table' ), 'Table'[Product] = _product )
    )
VAR _preqty =
    CALCULATE (
        SUM ( 'Table'[Qty] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Product] = _product
                && 'Table'[MY] = _preMY
        )
    )
RETURN
    IF (
        _MY = _preMY,
        BLANK (),
        DIVIDE ( SUM ( 'Table'[Qty] ) - _preqty, _preqty )
    )

Best Regards